Home / 356,123.48-491,431.74-194,947.66

Finding the Fourth Proportional to 356,123.48, 491,431.74 and 194,947.66

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Solution

The fourth proportional to 356,123.48, 491,431.74 and 194,947.66 is: 269,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,123.48 : 491,431.74 = 194,947.66 : x
  2. Step 2: Convert to fraction form
    356,123.48/491,431.74 = 194,947.66/x
  3. Step 3: Cross multiply
    356,123.48x = 491,431.74 × 194,947.66
  4. Step 4: Simplify right side
    356,123.48x = 95,803,465,305.57
  5. Step 5: Solve for x
    x = 95,803,465,305.57/356,123.48
  6. Step 6: Final answer
    x = 269,017.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.